By Harry Prabandham · Updated September 27, 2026
Tax Planning
QSBS Stacking Strategies: Gifts, Trusts, and Section 1045 Rollovers
QSBS stacking uses gifts to family members and non-grantor trusts so more than one taxpayer can claim the §1202 exclusion cap on the same company's stock.
QSBS Stacking Strategies: Gifts, Trusts, and Section 1045 Rollovers
1 / 7
What is QSBS stacking?
- QSBS stacking uses the per-taxpayer, per-issuer structure of the Section 1202 exclusion so more than one taxpayer can claim a cap on one company's stock.
- The common techniques are gifts to non-spouse family members and to non-grantor trusts, each of which may claim its own cap.
- For stock issued after July 4, 2025, the cap is the greater of $15 million or 10 times basis; for earlier stock, $10 million or 10 times basis.
- Results depend on facts, documentation, and timing, and aggressive structures draw IRS scrutiny.
Try Our Free Tools
Full Guide
What is QSBS stacking?
- QSBS stacking uses the per-taxpayer, per-issuer structure of the Section 1202 exclusion so more than one taxpayer can claim a cap on one company's stock.
- The common techniques are gifts to non-spouse family members and to non-grantor trusts, each of which may claim its own cap.
- For stock issued after July 4, 2025, the cap is the greater of $15 million or 10 times basis; for earlier stock, $10 million or 10 times basis.
- Results depend on facts, documentation, and timing, and aggressive structures draw IRS scrutiny.
How does Section 1202 work after the July 2025 tax law?
- Stock issued after July 4, 2025 qualifies for a 50% exclusion after 3 years, 75% after 4 years, and 100% after 5 years.
- For that newer stock, the issuer's gross assets can be up to $75 million at issuance, and the $15 million cap is indexed for inflation after 2026.
- Stock acquired from September 28, 2010 through July 4, 2025 keeps prior rules: 100% after 5 years, a $10 million cap, $50 million asset test.
- The issuer must be a domestic C corporation using at least 80% of assets in a qualified business; fields like health, law, consulting, finance, and hospitality are excluded.
Can spouses or family members each claim a separate cap?
- Spouses are generally treated as one taxpayer for the cap: a joint return shares one cap, and separate filers each get half.
- Gifted QSBS keeps the donor's holding period and qualified status, and a non-spouse donee may claim a separate cap.
- Gifts must be complete before a sale is agreed; transfers after a deal is effectively fixed risk being taxed to the donor.
- Gifts use lifetime gift and estate exemption, which is $15 million per person in 2026, beyond the $19,000 annual exclusion.
How do non-grantor trusts add exclusion capacity?
- A non-grantor trust is a separate taxpayer and may claim its own cap on gifted QSBS.
- Grantor trusts generally do not, because their income is taxed to the grantor, who shares the grantor's cap.
- Multiple trusts with substantially the same grantors and beneficiaries, formed mainly to avoid tax, can be treated as one trust under IRC §643(f).
- Non-grantor trusts reach the top federal bracket at a low income level, and some states tax trusts based on trustee or beneficiary residence.
Section 1045 rollovers
- If QSBS held more than six months is sold, reinvesting the proceeds in new QSBS within 60 days can defer the gain.
- The holding period of the original shares generally carries over to the replacement shares.
- It can help when a company is sold before the holding period for the full exclusion is met, but the replacement must itself qualify.
State conformity
- California does not conform to Section 1202, so QSBS gains are fully taxable for California residents at ordinary rates.
- Other states decide separately whether to follow Section 1202, and those rules can change.
- Moving before a sale requires a genuine change of domicile, and the departing state may still examine the timing.
Key takeaways
- Stacking can expand total QSBS exclusions, but spouses generally share one cap and trusts can be aggregated under anti-abuse rules.
- Stock issued after July 4, 2025 has a $15 million cap and tiered 3-, 4-, and 5-year exclusions; earlier stock keeps the $10 million, 5-year rules.
- Gift timing, trust design, and qualification records matter as much as the strategy itself.
- Structure any stacking plan with a tax attorney and CPA; Rubric does not prepare tax returns or give legal advice.
Related Topics
Equity Compensation
QSBS (Section 1202): Who Qualifies and How Much Is Excluded
QSBS can exclude federal gain on qualifying startup stock: up to $15M or 10x basis for stock issued after July 4, 2025. California still taxes it.
Tax PlanningCapital Gains Tax Rates for 2026: Brackets, NIIT, and Netting Rules
In 2026, long-term gains are taxed at 0% up to $49,450 single ($98,900 joint), 15% up to $545,500 ($613,700), and 20% above, plus possible NIIT.
Estate & LegacyGifting Strategies: 2026 Annual Exclusion and Lifetime Exemption
In 2026 you can give $19,000 per recipient tax-free, pay tuition or medical bills directly without limit, and use a $15 million lifetime exemption.